Disk plow.



No. 786,427. PATENTED APR. 4, 1905. c. R. DAVIS. DISK PLOW.

APPLICATION FILED MAY 27, 1903.

6 SHEETS-SHEET l.

WITNESSES No. 786,427. PATENTED APR. 4, 1905.

. C. R. DAVIS.

DISK PLOW.

APPLICATION FILED MAY 27, 1903.

6 SHEETS-SHEET 2.

WITNE'SES I V R a/f/flofl zdma Altorney No. 786,427. -PJ-JITENTED APR.4, 1905.

O. R. DAVIS.

DISK PLOW.

APILIOATION FILED MAY 27, 1903.

(i SHEETS-SHEET 3.

No. 786,427. PATENTED APR. 4, 1905. G. R. DAVIS.

.DISK PLOW.

APPLIOATION FILED MAY 27, 1903. 4

'VVENTOR (5% QML No. 786,427. 7 PATENTED APR. 4, 1905.

G. R. DAVIS.

DISK PLOW.

APPLIUATION FILED MAY 27, 1903.

6 SHEETS-SHEET 5.

I VJYYVESSES INVENTOR No. 786,427. PATENTED APR. 4, 1905. O. R. DAVIS.

DISK PLOW.

APPLICATION nun MAY 27, 1903.

6 BEBBTS-SHEET 6.

WITNESSES v [NVENTOR UNITED STATES Patented April 4, 1905.

PATENT OEEIcE.

CALVIN R. DAVIS, OF SOUTH BEND, INDIANA, ASSIGNOR TO THE OLIVER CHILLEDPLOW WORKS, OF SOUTH BEND, INDIANA.

DISK PLOW.

SPECIFICATION forming part of Letters Patent No. 786,427, dated April 4,1905.

Application filed May 27, 1903- Serial No. 159.036. I

f 0 all whom it may concern.-

Be it known that I, CALVIN R. DAvIs, of South Bend, in the county of St.Joseph and State of Indiana, have invented certain new and usefulImprovements in Disk Plows and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to an improvement in disk plows constructed withone or more plowing-disks mounted on a frame diagonally to the line ofdraft and suitably supported by landside furrow and caster wheels, theobject of the invention being to provide a structure that will be simpleand of ample strength to Withstand the severe usage to which implementsof this class are subjected and one in which the parts may be easily andquickly assembled and adjusted.

A further object is to provide means for holding the caster-wheel inline while plowing independently of the furrow-wheel, so that thewabbling movements of the latter will not necessarily be transmitted tothe caster-wheel, as they necessarily would be if the two were directlyconnected.

A further object is to provide a casterwheel connected by flexibledevices with the draft-clevis, so that the caster-wheel will al ways befree to make a left-hand turn, but will be positively restrained againsta move ment or caster in the opposite direction, ex cept when releasedby the turning of the draft-clevis.

With these and other objects in view my invention consists in the partsand combinations of parts and in the details of construction, as will bemore fully explained, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan View of my improvement.Fig. 2 is a side view of same. Fig. 3 is a view in perspective of thecoupling-block. Figs. 4, 5, 6, 7, 8, 9, and 10 are detached views ofparts. Fig. 11 is a perspective view of the draftclevis and itsconnected parts. Fig. 12 is a perspective view of the rear beam,casterwheel post, and the connection between the draft-clevis andcaster-wheel post; and Figs. 13 and 14 are views of modifications.

1 represents the draft-beam, preferably made of two flat plates 2 and 3,secured at their front ends to the crossclevis 4, having a series ofvertical openings, and at their rear ends to the top and bottom faces,respectively, of the hollow coupling-block. This block 5 is providednear its front and rear ends with the transverse series of bolt-holes 6for the passage of the securing-bolts 7. With this construction thedraft-bar can be adjusted laterally in either direction to equalize thedraft, and by making the draft-beam of two flat plates I produce anabsolutely rigid connection between the cross-clevis 4 and the block 5.This block is provided near its front end with the laterally-projectingflanges 8, having shoulders 9, between which rests the adjustablegage-bar 10. This bar projects laterally over the furrow side of theplow and is adjustably held in place by the clamps 11. Securedto theouter end of the gage-bar is the bracket 12, having the vertical sleeve13, in which is mounted the post 14 of the furrow-wheel 15. The spindlecarrying the furrow-wheel is integral with but at an obtuse angle to thepost, as shown, so as to hold the furrow-wheel in an inclined position.Hence it is evident that by moving the gage-bar 10 in or out, which maybe done by simply loosening the clamps 11, the width or thickness of thecut of the first disk may be regulated or adjusted.

Secured to the upper end of the post 14 is, the cap 15', having alaterally-projecting flange 16, carrying the eyebolt 17, to which oneend of the vertical spring 18 is secured, the opposite end of the springbeing attached to the hook 19, formed integral with the sleeve 13. Thisspring tends to sustain the weight of the gage-bar and the partsconnected to the latter and cushions the movements of said parts duringthe operation of lifting and lowering the gage-bar on the post.

Secured to the sleeve 13 is the sector 20, and pivoted to the latter isthelever 21. This lever is connected by link 22 with the sleeve 23,mounted on the post 14 between the cap 15 and fixed collar 15, whichlatter may be integral with the cap, the lever 21 being provided with aspring-catch for engaging the teeth on the sector 20.

With the construction thus far described it is ap arent that bydepressing the free end of the ever the sleeve 13 and gage-bar 10 willbe elevated, thus also elevating the block 5 and the disks carried bybeams secured to the block, the upward movements of the parts beingassisted by the spring 18. During the operation of lowering the gagebarand parts sustained thereby the spring acts as a cushion and assists theoperator very materially in controlling the descent.

Secured to and projecting forwardly from the spindle of the furrow-wheelis the bracket 24, to which the rear end of the brace 25 is secured.This brace is preferably made of two sections connected by a turnbuckle26, whereby it may be readily and accurately lengthened and shortened,so as to bring and hold the furrow-wheel in proper position relative tothe draft-clevis. This brace is connected at its front end to the outerend of the bell-crank lever 27, which latter constitutes the lowersection of the draft-clevis. This draft-clevis is composed of two levers27 and 28, the lower one, 27, of which is bell-crank in shape, aspreviously explained, while the upper one is straight and is connectedto the lower one by bolts 29, one of which pivots the draft-clevis tothe cross-clevis 4, the lat ter, as shown, being provided with a seriesof holes, through any one of which the pivot-pin may pass and by meansof which the position of the draft-clevis may be adjusted laterally. Thedoubletree of the three, four,

or five horse equalizer 30 is secured between the two members 27 and 28,constituting the draft-clevis, and it will be seen that when the team isturned to the right or left the draft-clevis will positively turn thepost carrying the furrowwheel.

The block 5 is provided on each side with parallel shoulders 31, betweenwhich the beams rest and which operate to take the strain from the bolts32, which secure the beams to the block. The beams 34 are of unequallengths, as shown, and each is provided with a bent rear end carryin thebracket-bearings 35, in which the disis 38 are journaled. Eachbracket-bearing 35 is provided with an enlarged upper end provided witha slot 35 as shown in Fig. 10, for the adjustable attachment of the bentarm 36, carrying the scraper 37. This arm is U shape, so as to overhangthe top of its disk 38, and is rounded at its free end to receive thesleeve 39, carrying the scraper 37, which latter is so shaped as toclean the disk from its center to its edge. This sleeve can be turned toany position and be adjusted vertically on the rounded end of the arm36, and

as the latter can be moved in the direction of the length of the slot inthe bracket-bearing the most delicate adjustments of the scraper can besecured, thus permitting the scraper to be brought up to a position toclean the disk without, if desired, making actual contact with thelatter or without bearing unevenly on the disk. The sleeve 39 is normally secured to the arm 36 by means of a set-screw 39. The bent end ofthe beam 34, carrying the rear disk, is made sufficiently long toreceive the sleeve 40, which carries the post 41 of the caster-wheel 42.This post 41 extends up through the sleeve and is provided at a pointabove the sleeve with the arm 42*, which is secured to the post by thethrough-bolt 43. This arm extends inwardly toward the landside of theplow and is provided at its free end with an eye 44, through which theeyebolt 45 passes, the latter being secured in place by a nut andwasher. Secured to the eyebolt and extending forwardly in rear of therear disk is the chain 46, which latter is secured at its front end tothe rocking block 47. This block is pivoted at one end to a bracket 48,secured to the beam 34, carrying the rear disk, and is pivotallyconnected at its opposite end to the pitman or brace 49. The pitman orbrace is made up of two parts connected by a turnbuckle and is connectedat its front end to one end of the lever 50, the opposite end of saidlever being pivoted at to the upper plate 2 of the draft-beam. Thislever, which may be of any approved construction, normally standsapproximately at right angles to the draft-beam and is connected to thefront end of the draft-clevis 27 28 by the arm 51. This arm is providedwith an elongated slot 52, through which bolt 53, carried by lever 50,passes, and when the team is pulling straight ahead the rear wall ofslot 52 in arm 51, hearing against bolt 53, prevents any rearwardmovement of the lever 50. Hence the latter holds the rocking block 47 inits forward depressed position and the chain 46 taut, and thusabsolutely prevents the post carrying the caster-wheel 42 from swivelingto the right; but as the chain is flexible the wheel is always free tocaster to the left. The tendency of the caster-wheel is, owing to theshape of its support, to caster or swivel to the right; but thistendency is overcome by the chain 46 until the team is turned to theright. When the team turns to the right, the arm 51 moves rearwardly,thus releasing the lever 50 and permitting the strain or pressure ontherocking block 47 to turn the latter upwardly and rearwardly, thusslacking the chain sufficiently for the casterwheel to turn in the samedirection. When the team turns to the left, the flexibility of the chainpermits the caster-wheel to follow without any movement of thelever-brace or rocking block. This block 47 is constructed ICC to engageshoulders 54 on the bracket 48 for preventing the block from passingbelow the center. When the block is inits forward position, it is nearlyon the center. Consequently the block receives and sustains the pressureof the rear caster-wheel, which pressure without the interposition ofthis block would fall directly on lever 50 and be transmittedfrom thenceto the draft-clevis and have a tendency to pull it to'one side. With thedevice as constructed the lever 50 and brace 49 simply operate to lockthe swinging block, while the latter receives and sustains the constantstress or pressure from the caster-wheel.

Mounted on top of the post 41 of the easter-wheel is the sleeve 55,having the horizon'tal bearing 56 for the cam-lever 57. This lever isconnected by its cam or shorter arm to the upper end of the pitman 58,the lower end of which is pivotally connected to the sleeve 40. When thelever is extending rearwardly in a horizontal position, the sleeve 40and the disk-beam 34, to which the sleeve is attached, are in theirlowermost positions, and by turning the lever completely over un til itrests in a forwardly-projecting horizontal position the sleeve 40, withits attached.

beam 34, will be elevated on the post, thus assisting the other wheelsin lifting the disks clear of the ground. The lever 57 is provided withtwo shoulders 59, located on opposite sides of the pivotal point of thepitman, which engage the pitman 58 and hold the lever in the twopositions just described. The sleeve 55, carrying the lever, is loose onthe post, but is restrained against downward movement by the arm 42 andagainst upward movement by the pin 60, passing through the post.

Secured to the beam 34, carrying the rear disk, is the bearing 61,carrying the axle 62 of the ground-wheel. This axle is crank shape, asshown, and carries a lever having a spring-catch which engages the teethof sector 68,, carried by the bearing 61. By this construction the axleof the ground-wheel can be turned so as to assist in elevating andlowering the frame carrying the disks.

While I have shown and described a plow having two beams and disks, Iwould have it distinctly understood that myinvention is not restrictedto such a structure, but is equally applicable to a plow having but asingle beam and disk or to a plow having more than two beams. Where buta single beam is used, as shown in Fig. 13, I prefer to brace the beamby a strap 64, secured to the side of the block 5, adjacent to thefurrow-wheel and connected at its rear end to the beam, and where threebeams and disks are employed, as shown in Fig. 14, the third beam issecured to a spacing-block 65, secured against the landside face of theadjacent beam, and when this spacing-block is employed it is constructedto take the place of the bearing 61 carrying the axle of the land-wheel,as shown in Figs. 1 and 13. In other respects the structure andoperation of the devices are identical.

It is evident that many changes in the construction and relativearrangement of the various parts might be made without avoiding myinvention, and hence I would have it understood that I do not restrictmyself to the particular construction and arrangements of parts shownand described but,

Having fully described my invention,what I claim as new, and desire tosecure by Letters Patent, is

1. In a plow, the combination with ablock, of disk-beams secured torespective sides of said block, a gage-bar secured to said block andextending across the same at the forward end thereof, and a draft-beamprojecting under the gage-bar and secured upon said block and means foradjusting the position of said draft-beam on the block in a direction atright angles to said beam.

2. In a plow, the combination with a frame and a caster-wheel and postfor the latter, of a draft-clevis and flexible device connecting thedraft-clevis and caster-wheel post whereby the latter is restrained bythe pull on the draft-clevis from turning in one direction independentlyof the draft-clevis, but is free to turn in the other directionindependently of said clevis.

3. In a plow, the combination with a frame, a caster-wheel and a postfor the latter, of a draft-clevis and a sectional connection between thedraft-clevis and post, said connection being movable longitudinally fromend to end by the clevis, and one section of said connection being rigidand the other flexible, whereby the caster-wheel post is free to turnautomatically in one direction and automatically restrained from turningin the other direction.

4. In a plow, the combination with a frame, a casterwheel and post forthe latter, of a draft-clevis, and a sectional connection between thepost and draft-clevis, one section of said connection being rigid andadjustable lengthwise and the other flexible.

5. In a plow, the combination with a frame, a caster-wheel and a postfor the latter, of a draft-clevis, a sectional connection between thedraft-clevis and caster-wheel post, and a block mounted to rock andhaving both sections of said connection attached to one end thereof.

6. In a plow, the combination with a frame, a caster-wheel and post forthe latter, of a draft-clevis, a sectional connection between said postand clevis, one section of said connection being rigid and the otherflexible, and a freely-movable rocking block connecting said sections.

7. In a plow, the combination with a frame, a caster-wheel and post forthe latter, of a draft-clevis, a freely-movable rocking block pivoted tothe frame, a rigid connecl post being mounted in a bearing on said tionbetween the block and the clevis and a flexible connection between theblock and the caster-wheel post.

8. In a plow, the combination with a frame, a caster-wheel and post forthe latter, of a draft-clevis, a freely-movable rocking block mounted onthe frame, an adjustable connection between the clevis and the block anda flexible connection between the block and the caster-Wheel post.

9. In a plow, the combination with a frame, a caster-wheel and post forthe latter, of a freely-movable rocking block pivoted to the frame,means for preventing said block from dropping below the center, adraftclevis, a rigid connection between the clevis and rocking block anda flexible connection between the block and the caster-wheel post.

10. In a plow, the combination with a beam, a frame, a draft-clevispivoted to the beam, a lever also pivoted to the beam and a connectionbetween the draft-clevis and lever for preventing movement of the latterwhen the draft is in line with the beam, of a caster-wheel, a rockingblock pivoted to the frame, an unyielding connection between the leverand the block, and a flexible connection between the rocking block andthe caster-wheel post.

11. In a plow, the combination with a frame, a caster-wheel and posttherefor, the

frame, of a cam-lever fixed to the post and provided with two stops anda link pivoted to said lever and to the frame, the stops on the leveradapted to engage the link and hold the lever in its two adjustments.

12. In a plow, the combination with a frame and a caster-wheel postmounted therein, of a bearing carried by said post, a cam-lever mountedin said bearing, a link pivoted to said lever and to the frame and stopson the lever on opposite sides of the pivotal attachment of the link.

13. In a plow, the combination with a block having series of verticalholes therein and a plow-beam rigidly secured at its for ward end tosaid block and projecting rearwardly therefrom, of a draft-beamadjustable laterally on said block in a direction at right angles tosaid beam, a draft-clevis and a cross-clevis secured to the front end ofthe draft-beam and provided with a series of holes for the adjustableattachment of the draft-clevis.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

CALVIN R. DAVIS.

Witnesses:

FRANCIS C. NIPPOLD, EDWIN NIOAR.

